I’ve seen the app Apollo as the center of the reddit protest (it was mentioned and cited more than any other app in relevant posts). I’ve also seen many Lemmy clients in development taking inspiration from it.
As a lifetime Android user I’ve never been able to use it, and I’ve never gotten a proper answer to “why not just use the official app?” What made it different from the official application and other unofficial clients that consequently made it so popular among Redditors?
the biggest difference is that the 3rd party apps including Apollo typically were developed with passion whereas the official app is developed with one goal in mind: monetization. This leads to Apollo and the like having a great user experience and the official app riddled with bugs or just terrible user experience in general as long as it’s good enough to get the money they want.